Britney Spears was hit by dubbing allegations over the weekend after her single Passenger from her upcoming album was leaked online.

Fans took to Twitter, alleging Britney's longtime backup singer Myah Marie provided the bulk of the vocals for the song from new album Britney Jean.

But Myah has hit back at the claims, insisting she 'most certainly cannot take credit for [Britney's] tremendous talent as a singer.'

Can't take credit: Britney Spears' backup singer has denied claims that she dubbed the pop star's upcoming album Britney Jean

'...while I am so grateful for the opportunity to provide background vocals for Britney Spears on a small number of her most recent works, I most certainly cannot take credit for her tremendous talent as a singer,' she wrote in an email to RadarOnline.

'She is a veritable "living legend" with a longstanding reputation for excellence in all aspects of her artistry. She is my idol and I have nothing but the utmost respect and admiration for her. I have no further comment.'

This isn't the first time Myah has been accused of dubbing Britney's music.

Legend: Mayah called Britney a 'living legend' and her 'idol' as she denied the dubbing claims

Throwback: Myah (L) as a 10 year old with Britney nearly a decade ago

Outrage: Britney's fans took to Twitter over the weekend alleging her son Passenger, which was leaked online, was sung partly by Myah, Britney pictured in LA on Saturday